Air-line oiler



April 1929- c. c. HANSEN 1,707,661

AIRYLINI 011.311

Filed Nov. 2 7, 1926 INVENTOR. es'CHaaaen BY 2: H15 ATTORNEY.

Patented Apr. 2, 1929.

UNITED STATES PATENT OFFICE.

CHARLES C. HANSEN, OF EASTON, PENNSYLVANIA, ASSIGNOR TO INGERSOLL-BAND I COMPANY, OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

AIR-LINE OILER.

Application filed November 27, 1926. Serial No. 151,126.

This invention relates to oiling devices, but more particularly to an air line oiler adapted to be attached to pressure fluid supply lines used for conveying pressure fluid to rock drills and other similar engines.

The objects of the invention are to prevent interruptions in drilling operations for the purpose of introducin lubricant to the drills and to construct a simplified oiling device capable of delivering a uniform and adequate supply of lubricant to the mechanism intended to be lubricated in any of the various positions which the oiling device may occupy in practice.

Other objects will appear hereinafter.

In the drawings in which is illustrated a preferred modification of the invention,

Figure 1 is a longitudinal sectional elevation of an oiler constructed in accordance with the practice of the invention, and

Figure 2 is a transverse View taken through Figure 1 on the line 22 looking in the direction of the arrows.

Referring to the drawings, A designates a casing having a threaded aperture B at one end and at its other end an inwardly extending projection C. The interior of the casing A comprises a reservoir D for oil or other suitable lubricant which may be introduced into the casing through a threaded opening E normally sealed by a filler plug F.

In the present instance a plug G is screwed into the threaded aperture B of the casing to form a closure for the reservoir D. The plug G, like the casing A, also has an inwardly extending projection H similar to the projection C of the casing and these projections C and H are provided with passageways J to form a continuation of an air line K screwed in this instance in the outer ends of the passageways J. V

The inner endsL of the projections C and H are preferably of smaller diameter than the projections to form bearings for a sleeve 0 disposed rotatably thereon. The sleeve 0 is preferably fitted on the ends L in such a manner as to form fluid tight joints between the surfaces of the sleeve 0 and the projections C and H. The sleeve 0 thus forms a portion of the passageway J. In order to convey pressure fluid from the passageway J into the reservoir D, a tube P is screwed in the sleeve 0 and is preferably of such length that its free end or outlet opening extends to a point near the wall of the casing.

To the end that the tube Pmay at all times be maintained in a vertical position, thus insuring against the immersion of the outlet opening of the tube P in the oil, the sleeve 0 is provided with a weight Q' so that'when the casing A rolls from one position to another, the weight Q will tend to rock the sleeve in such a manner that the tube P will always be .maintained in the desired vertical position.

The oil is in this instance conveyed from the reservoir D through a passage R in the weight Q and one side of the sleeve 0 and extending to the outermost end of thewei ht Q. The weight Q is preferabl of such Ien'gth that the inlet opening S of t e passage R will at all times occupy a position near the bot-- tom of the reservoir D.

Disposed in the passage R is a pin T adapted to be actuated by the pulsations occurring in the pressure fluid flowing through the passageway J for delivering oil from the reservoir D into the said passageway 'J. The pin T is preferably of sufliciently smaller diameter than the passage R to form a suitable space U therebetween for the passage of oil through the said passage R. The pin T may be of any suitable and convenient length but is preferably of such length that one end may at all times contact with the wall of the res ervoir D and the other. end extends well through the passageway J' so that a considerable portion thereof will be exposed to the pressure fluid flowingthrough the said passageway. This is particularly advantageous when heavy oil is used and the supply of oil in the reservoir is nearly exhausted. Under these conditions when the casing is rotated during the course of the work, the oil does not remain level but moves with the casing. B permitting the pin T to bear on the wall of the casing the weight will, to some extent, follow the movement of the casing and maintain the inlet opening S of the passage R in communication with the oil in the reservoir.

The operation of the device is as follows: Pressure fluid, such as compressed air, entering the passageway J from the air line K will, by the pulsations caused by the admission and ut off of the pressure fluid in the tool to be c oiled, cause the pin T to Vibrate in a direction ratosverse to the passage R. At the sam 7.111 5 pressure fluid will sass tl'u'ough the tub ei'itoir and the passe ay will he balance Howevetc, when the tool is in operation, a of slight unbalance will be obtained in to- L res in he reservoir and the passagewa so t, a the oil Wil tend to In the R, and the pin T due to its vibratory action, Wiil thou force the oil from the passage into the p l press a ass-age 21", from whence it wi l be carried in the form of vapor to the tool to he oiled by the pressure iiuid utilized for operating the tool. V

; VJhenever the air line and thus also the ing A is shifted from one position to the other as is frequently done in drilling and similar operations, the sleeve 0 will be seized freely about the projections C and H by the Weight Qso that the tube'P will'at all times be inaiitained in a vertical position, thus insuring and against the immersion of said tube in the oil.

I claim:

Au air has oiler comgrisi'hg a casing formi eservoir, inwardly extending prothe casing, said projections being hollow to rm 2 1, essure fluid passageway, a sleeve e on theprojleetions forming a )QEtlOIQ oi the passageway, a tube eai'iied by re sle ve eoii eyiiig pressure fluid from the ocoi in the pressure fluid flowing oasthroughthe passageway for delivering oil i'TSHl the reservoir to the passa eway, said pin be with one end against the Wall of the easiiug' to retard rotary movement of the g t relatively to the casing. In testimony whereof I- have signed this e V y sp oii'ieation. 7

CHARLES C. HANSEN. 

